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$24.00 USD
Cijena
1780
9

Rutilated Quartz: 2.37ct, another tear from the earth!

SKU
Dimenzije (mm)
9.950 x 7.250 x 5.000mm
Težina (cts)
2.370
Treatment
No Treatment
Boje

Pure quartz, traditionally called rock crystal or clear quartz, is colorless and transparent or translucent, and has often been used for hardstone carvings, such as the Lothair Crystal. Common colored varieties include citrine, rose quartz, amethyst, smoky quartz, milky quartz, and others. These color differentiations arise from chromophores which have been incorporated into the crystal structure of the mineral. Polymorphs of quartz include: α-quartz (low), β-quartz, tridymite, moganite, cristobalite, coesite, and stishovite.

Quartz is a hard, crystalline mineral composed of silicon and oxygen atoms. The atoms are linked in a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar.

Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral. The transformation from α-quartz to β-quartz takes place abruptly at 573 °C (846 K; 1,063 °F). Since the transformation is accompanied by a significant change in volume, it can easily induce fracturing of ceramics or rocks passing through this temperature threshold.

There are many different varieties of quartz, several of which are semi-precious gemstones. Since antiquity, varieties of quartz have been the most commonly used minerals in the making of jewelry and hardstone carvings, especially in Eurasia.

The most important distinction between types of quartz is that of macrocrystalline (individual crystals visible to the unaided eye) and the microcrystalline or cryptocrystalline varieties (aggregates of crystals visible only under high magnification). The cryptocrystalline varieties are either translucent or mostly opaque, while the transparent varieties tend to be macrocrystalline. Chalcedony is a cryptocrystalline form of silica consisting of fine intergrowths of both quartz, and its monoclinic polymorph moganite. Other opaque gemstone varieties of quartz, or mixed rocks including quartz, often including contrasting bands or patterns of color, are agate, carnelian or sard, onyx, heliotrope, and jasper. 



Shipping: For special requests such as express delivery please contact me. For lost stones the seller is not liable, therefore an additional insurance is recommended. Right of return within two weeks after receiving the shipment. Payment via PayPal, Credit Card, or Bank transfer is possible. For the shipping I generally use: Austrian Post or FedEx. Unfortunately from Austria only DHL "express" is possible.

Please pay your stones in between five days or contact me. Otherwise I need to cancel the deal.

If there is anything you shouldn't be satisfied with please just let me now and we will find a way to solve every problem. My aim is to make you happy with beautiful stones of good quality, good communication is the easiest way to find a solution!



Pružatelj usluge dostave Dostava u Austria Dostava u ostatak svijeta
Standard Shipping - Tracked $12.00 / :dani dani $16.00 / :dani dani
:zemlja
Standard Shipping - Tracked je snižen na $15.00 na narudžbe s 3 ili više artikala
Ostatak svijeta
Standard Shipping - Tracked je snižen na $17.00 na narudžbe s 3 ili više artikala
FedEx $27.00 / :dani dani $46.00 / :dani dani
:zemlja
FedEx je snižen na $26.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
FedEx je snižen na $45.00 na narudžbe s 2 ili više artikala
Express Shipping $36.00 / :dani dani $75.00 / :dani dani
:zemlja
Express Shipping je snižen na $40.00 na narudžbe s 3 ili više artikala
Ostatak svijeta
Express Shipping je snižen na $65.00 na narudžbe s 3 ili više artikala
Registered Shipping $9.00 / :dani dani $16.00 / :dani dani
:zemlja
Registered Shipping je snižen na $15.00 na narudžbe s 3 ili više artikala
Ostatak svijeta
Registered Shipping je snižen na $15.00 na narudžbe s 3 ili više artikala
Standard Shipping - Untracked $5.00 / :dani dani $13.00 / :dani dani
:zemlja
Standard Shipping - Untracked je snižen na $15.00 na narudžbe s 3 ili više artikala
Ostatak svijeta
Standard Shipping - Untracked je snižen na $13.00 na narudžbe s 3 ili više artikala

stonehengejpd
stonehengejpd
Selling all kind of gems, great quality at affordable prices, based in the heart of Europe! In case you may have special wishes just let me know :-) If you shouldn´t be satisfied with an order please do not give a negative feedback just let me know and there is always a way to find a solution that everybody is happy!
:Grad drzava
Provjereno
:ukupne povratne informacije

Revizija

Program Gemstone Sheriff omogućuje našim članovima da zatraže reviziju bilo kojeg proizvoda, koju dovršava neovisna :kvalifikacija koja procjenjuje točnost opisa artikla i slika.

Detalji dostave

dostava:
$16.00 21 days putem Standard Shipping - Tracked
Brodovi iz:
Austria

Načini plačanja

  • paypal
  • stripe
  • escrow
Ovaj prodavač dodaje 20.00% porez na transakcije u Austria.

Pregled

Vrsta unosa : Standard
Identifikacijski broj proizvoda : 2017567
Počinje : 14th November 2024 06:50 am PST
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